"500' Wire Spools and 1/2" Tubing:""500' Wire Spools and 1/2" Tubing:"
From: Mike mdeu11@optonline.net
To get a 500'spool of wire on a piece of 1/2" tubing take an arbor and secure it to the pilot bit of a 7/8" hole saw assmebly. Secure it so it is upside down on the pilot bit. the wider side of the arbor fits the hole and you can redrill the plastic spools to fit the 1/2" tubing.
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